Electrically-driven elevating mechanism for guns.



f ELEQTRICALLY DRIVER ELEvAftINGMBoHANlSM FOR GUNS.

Patented. Aug 24. 1909.

" s SHEETS-:SHEET 1.

J. KRONE, G..A. SGHOEL'L'RI& H. SUNDHAUSSEN.' ELBGTRIGALLY DRIVEN ELEVATING MECHANISM POR GUNS.

APPLIOATION FILED MAY l2. 1908.

` Patented Aug, 24, 1909.A

3 SHEETS-#SHEET 2.

entren srarns .OHANNES KRONE, iOF ESISEN-OT-THE-RUHR,

EUHR, AND, HERMANN SUNDHAUSSEN, 0F ]B/EDE'BTIEIY,` GERMANY,

KRUPP AKTIENGESELLSCHAFT,

GUSTV ArSCIE-IOEILER, 0F MLHEIM-ONfTHE- ASSIGNORS TQKEEB'IED.

ELEQTRICALLYDRIVEN ELEVATING MECHANISM. non' Guns.

Specification of Letters Patent.- Patented Allg, 24,1909.

Application filed-May 12, 190s. serial No. 432,473.

.To all 'whom it may concern.' Be it known that we, JoHANNsfKnoNE, residing at Essen on the Ruhr, Germany,

GUs'rAv A. SCHOELLER, residing at Mlheim-'- on-the-Tu'hr, Germany, and HERMANN Sonn- Hanssen, residing at Bredeney, Germany, all subjects of the Emperor of Germany, have invented acertain new and useful Improvement in Electrically-Driven Elevating Mechanisni for Guns, of which the'followin'g is a specitication.rv

The subjectof Vthis vinvention is' an elec-V trically operated elevating mechanism for guns, which provides foralparticularly accurate'adjustment ofthe gun barre-l.-

Iii-the drawingsone' embodiment of the invention is shown byway'- of illustration.

' Figure l showsa side elevation, partly in section, of Athe parts of a gun which are concerned with the. present invention, together with the electrical equipment thereof'. Figs.

e l n 0', 2 and Bjare corresponding ,views,which serve for illustration of the inode of operation of the subject matter of the invention.

Thegun barrel A is Sli'dingly mounted in of horizontal trunnions,

swing upon' ythe trunnion'b1 is an index pointer D. rlhis index pointer, `togetherv with an arm all, may be swung aboutthe axis 'of the horizontal trunnions, bymeans of a hand-wheel E acting through the medium of a worm e1 (F ig. l) and a worinwheel standing in engagement. therewith. lUpon the carriage body C is mounted a graduated arc c1, 'over vthe graduations of the saine graduation mark 'which both the pointer D and a; pointer b2, rigidly connected with the cradle` B, can play; When *the pointers D and o2 point to one and of the arc c1, the gun barrel stands at an angle of elevation or depression corresponding to the adjustment of the pointer D. Rlgidly connected with the trunnion b1. is acarrier b3. Upon this carrier, two insulated contact rails b", b5 are mounted. These Contact rails lie concen vtric with the horizontal truiinions. The lower portion of the carrier b3 is provided with teeth b, with which -a toothed wheel'F stands in engagement'. This toothed wheel can be driven by an electrical motor G, actrests upon the car# (For purpose perspicity, the moto-G 55 is repeated inthe circuit chart). ATWith the parts in thel position shown angular insulated contact piece d'2 occupies, with slight play,V the space between the contact rails b4, b5, ranged upon thea'rmd1 [and can swing about 'theaxiscl Abutting' against this contact piece and lslidingly mounted in'a'n insulate" ing box, under spring pressure, is the shaft" of a likewise insulated Contact piece d'4. ABe- `65 neath the contact piece d* and' upon Ithegari'n d1 are two insulated'contact pieces d5, d6. -Arranged above the space betwe'enthe con-v l, tact rails 54 I5,'and uponthe carriejrfb, is -f an electrical spark blower .57. '70 Elected on the base of thegun-barreLfis f, an electro-magnetic ringdevice J, provided with a pot-magnet.. The'I winding of this; magnetis indicated by il. To the arrange# relays. One is a double relay andconsis'tsf the' windings K, lvl, and the armatures -N,P.

plQCeS 71.1, ne, n3 `011191' 7)2 par turesN,P,a'r'ed 7 l Test (Fig 1), in Which they' are held by into -the windings K, M, 'the,contac't's'itf11,1"-v

n4 a5, and-the conta'ctsp1 p2 upon thfxed'f contacts p4 205 while in. the position 03E-rest.,`

touch.' TheJ -second relay 'Consists f; the

ries an electrically .conductive 'cross-bar ffl, whic'li'ca'i'i contactwvith two xedcontact pieces r2 r3. y

, The several -parts arev connected byjconductors with a source of electricity S+ S" 'and' 95 with1 one another in the following manner: Branching off from the conductor l, which.

is connected with the pole S"L of the source of j electricity, conductors-2, 8, Ll., and le'adto d", thetriangular'contact piece d2, and the spark blower bf', respectively. The 4lastnanied is connected by a conductor vGwvith the pole Sof the source of electricity. Also connected withthe 1 tors '7 and l0. Branches 8 and 9 ofthe confiiwrig. 1, aerit-y l whichA contact 'piece-isarf-4 6,0

ment are als'o adapted two electro-magnetic 75.

`Connected with each of these, armatures is-a i cross-bar, upon which are insulated contadt s.,

I l If the armar' 80V" rawn from their position'of spring arranged between'their cross--ba'rsgf are caused to bear upon'the fixed cntacts' I 'of ariiiatuies' N P, the contacts n?, and-p3' windingQ and the armatuifeR. This ciali-90'- the winding. l ofmagnet J, the Acontact' piece .IO

pole-S* are the conducf 1.0.5

a 10 lead each to onev end of' ductor lead to a resistance U, and to the l' contact'piece w35 of the relay armature R, and branches 11', 12,13 and 14 of the conductor.

the .relay windings Q, K, M-and to the contact piece 01,3 of therelayarmature N. The other ends of the relay windings Q, K, M, are connected by conductors 15, 16 and 17 with the contact (ZG of the arm d l', and with the contactrails b* b5.- The contact vpieces '012,- nt" and p4. are

connected with one another by the conductors 18,519 and 20; in the conductor 18 is in? the resistance U. Leading from the winding `of the relay armature P is agconductor 21, in which is included a switch T. The' pole- S+ of'the'source o f-currentstands in connec.

" through the tio'n. through conductors 22,223, with the11c0n tacts n? "f, The motor armature G is included directly between the contact pieces m? p2, which are connected crosswise with. the contact piecesfn1 p1.. The fieldwinding g1 of the electric motor is connected in shunt `\directly with"` the poles of the. electrical source S+ S1@ Y ,A "l- -As soon as the pointer D has been adjusted l lme 'um-of the hand-wheel E .from the position of rest shown 1, whichcorresponds to-the horizontal or loads.;

ing position of elevationof about 2 2), the follow ing conditions take place. Contact pieced? arm Z1 which follows' the movement of thepointer D comes into con-' tact with the contact rail b5.; Thelcontact piece d2' then rotates aboutits. axis cl3,- this causes the contact piece d to be 'moved` and the segment movement downward, but not so far as tof cause'it`to impinge the 'contacts d5 d". Bythe contact. of Contact piece d 2'with .thefconta'ctvrail b5, a circuit will be. closed as follows, S +-'"1- L dbSN-Maseiori The relay winding M will .thus be excited s o that its armature will be-attracted- This arma-l ture thereby closes a second circuit, S+;-22-.4-

I #JL-S,- which throws the motor armature Gin-circuit with the source ofvelectricity.`

Since'the field -winding g1 is permanently.

connected with the electrical 'source S' S,

the motor will now begin to turn, 'and acting 'through-the medium of Ithe toothed-wheel F will Aswing the carrier b3 with -th'e'cradle B and the gunibarrel A'nr the dii'ectin of the arrow 2').4 The of the motor at this time proceedsv with moderate speed, since the resistance-.U is included in the circuit of the motor arma? ture. As soon as thecontact'piece Z2 springs into'thefintermediate space .between the contact rails b4 b5, thecurrent passing' through the relay windin M willbe interrupted.

The occurrence of arcing between the con.

tact piece Z2 and the rail b will be prevented by means 'of the spark blowen?)7 which is.

.'1 of the magnet J tothe contact p3V the gun* barrel, t0 a slight the medium'of conductors 1, 5 and 6.

.The winding M releases Athe armaturel? -its position of rest under the influence of'its before-mentioned spring. By this means, the motor armature is cut 0E from the source of current, but simultaneously the contacts n3 and p? touch and establish a cir- Cuit St-l-2-1-21-T-21-p-ns-liis closed,'thegun will be fired.l Should thev elevationzto be imparted to the gun 'barrel be greater .than that selected for illustration in thel foregoing description,

4contact-piece d? during the adjustment of the pointer D, is turned by the contact .rail b5, until the/ contact piece d* contact with the' contact pieces d5 d6 (Fig.

circuit, 't he revolution :of the motor' will, of course, increase. be moved morerapldly..

separatesfrom broken;

into the vspace winding Q.,

' thecont'acts i# 13,'so'.that the resistance U circuit and theslow running of the motor ment with moderate speedthe intermediate position illustratedinFig.

2 the' adjustment of lthe pointer -D first with the rail'ht and the establishment ofthe as soonas thecurrent supplied to it is invterrupted, and said armature will return to 10-7'S-. As soon now as the switch Ty is forced into the armature circuit of the motor, so that the current flowing through G -nzply-Qo Inasfl muchas the cutting o utofftheI resistance U increases the strength ofthe armature after the' interruption of .the circuit .of thev Vreleases the connection between is-reestablished.. h e' gun barrel Will 'l thus i vbe turned during -thelatte'r part of its move-j 1.. If it. 1s ,to .receive a .depression of about.

connected with the sourceofsupply through i that is to say greater than about 2, the

This establishes the following ,'circuit,

R will be vattracted 10o This rapid Inove- 4ment continues untilthefcontact piece d4 thecontactsdtd 'and thecirg cuit of .the relay -.'winding Q, isv thereby The lcontact 4piece d* leaves the' 'contacts dsfclfa short time before the moiv `j ment at which 'the contact piece d2' springs 7;.S*; l'the'relay armature will beattracted motor runs with moderate speedland-.moves the "barrel through the.' medium ofthe car-.-

` rier b3, so that tlie'bre'ech of the gun barrel israised `If the adjustment nqce'ssitates a depression greater than about 2O, imp'inge" nient takes place between' the contact piece d* and the cont-act pieces-Z (Z6, the resistancefv U is short circuited by the attraction of the v relay cross-bar r1, and the motor runs more y of thev contact piece dtaneously establishes the firing, circuit byy the touching of. the contact piecesn3 p3.

Having thus describ'ed'our' inventioiiftlie following is What'weclaimas nevv'ithere'in and desire to secure byLetters Patentz. 5

l. In an electrically driven elevating mechanism foi'giins, i

driving said mechanismgfa resistance normally in circuit Witli'-theelectricinoter. when" the gun is approaching the iiringr'pos'ition upon its trunnionsg. and controlling means comprising a resistance'jnormally in circuit/ whereby the speed of theniotor is reduced;

and means for autoniaticallysfhort-circuitf ing' said resistance to cause t-he` gun to travel faster during other portions of its travel.

2. In an electrically driven elevating mechanism for guns,V the combination ofi-the electric motor by which theigunis `.swung .With said motor and an automatically operated armature for short'- circuiting said resistance tocausethe motor to travjel`morel slowly as' the gun-barrel 'approaches the limits of its movement. 1 1

3.' In anelectrically driven elevating inechanisin for guns, the combina-tion of the elec-' tric motor,v suitably connected to thegun'barrel-for moving the latter upon its-horizontal trunnions, suitable circuiting current to said motor, 'a resist-ance,"coiitacts connected in parallel With saidV resistance;

and arelay closingthe motor 'ci'rcuit through the. resistance; when the 4gun-` barielfappreaches `thefliinits vof itsmovement 'and 'cuts tingout'the resistance and' closing said circuit through tliesaid contacts While the' mo'- tor vi 4l v"In an` electrically'driven elevating Inschanismf'for'gunsg'the combination ofthe "elec-j `triciiiotoiglo upon itslioifizontaltrunnions, kthe circuit vfor .said motor,V the resistance in contacts introduced in said-circuit in parallel 'fyvliich the gun barrel is'moved said circuit, the

with said resistancej-'v'tlie-relay cuttingout Said resistance during intermediate portions After the springing" p tlie'current oi'y the cir! cuit.iiicludiiig the relay `Winding K v'Will be nient. adaptedto mechanism for'elevat; ing and depressing the Vgung'amotor for.

for supplying isautomaticall ving'thefgiin barrel between said 'of .the movement of the gun bairel,'but

Athrowing said resistance into circuit 'as the gun barrel approaches' the limits of its moveinent, a inovablepointer, by which the-angle to be imparted t'o the Aof said pointer, and electrical connections through Which'said contact piececontrols i the supply of current to-the relay. f

5. In an electrically driven elevating mechanism foi" guns, the lcombination vvith` the -eleyatin'gmechanisinyof an electric motor for diiiving, Asaid mechanism; a pointer for indi ngth'e'aiigle ofdepression or eleva-v tior i, 'and means' carried by saidV pointer for automatically controlling-the speed of the motor by thel movement. of the gun.

n gun barrel is indicated, a contactpiece partaliing of the movement sovr 6, In anlelectric'ally driven elevating mechanisin for guiistlie combination with the elevating mechanism and the electric motor fondriving the saine; of apointing attachbeset to indicate the de-` sired elevation or depression of the gun; and

means carried by the pointing attachment "for automatically reducing the speed of the inotor'a'sfthegun barrel approaches the limits of its movement.

ln an electrically driven elevating mech-l'. anism for guns,

the 4combination ,v'vith the elevatingmechanism and the motor 'for driv- `-ing the samegvof a pointing iiiechanism'for y fpr'edetermining the angleA of' elevation or de- 'pression of the gun,saidmechanism being provided with means for automatically start* ing andstopping the motor and of reducing the speed `of said motor approaches the limits of its movement.

8 1 In'an electrically driven 'elevating mechA iop` as the gun barrelv anis'm `for wgunsLthe coinbinationwith the" `elevating mechanism and the motor for driv- -ingthesameg of a' resistance in circuit With the armature of-said motor during part ef J .thetinie the gun is being elevated or depressed; a pointing device adapted, to be seti' I to any angle at 'the gun, said device being 'provided with which itis desired tol fire vmeans forcompleting a c/ ircuit through the vmotor and resistance Tin series and also with means' tor completing a circuiting through the motor Without the resistance; yand' means 1 connecting said pointing device With the guns-barrel 'Wherebyfthefspeed of .the motor y controlled -bythe movement of` the giuri barre1.`

9. In an electrically driven ani-sm for guns,the .combination of the electric motor having'a shuntcircuit for its field Winding and having its armature suitably connected for transferring'the gun between vloading and firingv positions; a relay; a re-4 siStance; a pointerprovided -With means for elevating mechautomatically-.energizing said relay whenV v said pointer is set at 'the angle at which the gun is to be tired; a second relay; means carried by the pointerwhereby said second relay .Y energized; and Ihleans moving with 1 the gn barrel *and provided With ountcts @whereby sadxelays are causdt be eneri- JQHANNES 'KRONE' v .GUSTAV A. SCHOELLER. l HERMANN SUNDHAUSSEN-` Ip presence of- K- PETVER LIEBER, ,l .XVILHE-LM ,FLASQHE. 

